行道树对LED路灯照明效果影响研究

Study about Effects of Street Trees on LED Road Lighting

为绿化城市,很多城市机动车道旁都种有行道树,但随着季节的更替,树木荣枯对道路照明效果的影响巨大。为研究不同季节行道树对道路照明效果的影响程度,分别在早春、夏天两个季节,对某市中心区1条采用LED为路灯光源的主干道的照明情况进行了现场测量,并参照国标中平均照度、照度均匀度、平均亮度、亮度均匀度、环境比、眩光阈值等指标对照明效果进行了分析。基于测量发现的问题,结合道路周边环境,对两条路段的照明设施提出建议,以期达到满足使用者视觉功效的目标。

In order to afforest the city,people plant trees beside the vehicular roads.But the vicissitudes of the trees with seasons have a huge impact on the road lighting effect.To study how the street trees affect lighting effect,we carried out the field measurements on a main road in early spring and summer respectively.The road locates in center region of a city,with LED as the light source.Data we got through measurement are processed to obtain the indicators,such as average illuminance,illuminance uniformity,average luminance,luminance uniformity and surround ratio etc.We compared these indicators with the Chinese national standard to study how the street trees in different seasons affect the lighting effect.In the final end,some suggestions are made to help improving lighting effect.